<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片列表内容区 -->
    <el-card class="box-card">
      <!-- 头部搜索操作区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" icon="el-icon-plus" @click="addUserVisible = true">新增用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userList" border>
        <el-table-column type="selection" width="55"></el-table-column>
        <el-table-column type="index" label="序号" width="55"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_state">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <!-- 按钮区域 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEidtDialog(scope.row.id)"
            ></el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="deleteUserById(scope.row.id)"
            ></el-button>
            <el-tooltip class="item" content="分配权限" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-s-tools" size="mini" @click="showUserRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 20, 50]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>

    <!-- 用户新增dialog -->
    <el-dialog
      title="新增用户信息"
      :visible.sync="addUserVisible"
      width="40%"
      :close-on-click-modal="false"
      @close="addFormClosed"
    >
      <!-- 表单区域 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="80px"
        class="demo-ruleForm"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password" type="password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addUserVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 用户修改dialog -->
    <el-dialog
      title="修改用户信息"
      :visible.sync="editUserVisible"
      width="40%"
      :close-on-click-modal="false"
      @close="editFormClosed"
    >
      <!-- 表单区域 -->
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="80px"
        class="demo-ruleForm"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editUserVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 用户角色dialog -->
    <el-dialog
      title="分配用户角色"
      :visible.sync="userRoleVisible"
      width="40%"
      :close-on-click-modal="false" @close="userRoleDialogClosed"
    >
      <!-- 表单区域 -->
      <div>
        <p>当前用户：{{userInfo.username}}</p>
        <p>当前角色：{{userInfo.role_name}}</p>
        <p>分配角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option v-for="item in roleList" :key="item.id" :label="item.roleName" :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="userRoleVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveUserRole">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    // 验证邮箱规则
    var checkEmail = (rule, value, callback) => {
      const regEmail = /^[A-Za-z0-9\u4e00-\u9fa5]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/;
      if (regEmail.test(value)) {
        return callback();
      }
      callback(new Error("请输入正确的邮箱"));
    };
    //验证手机号码规则
    var checkMobile = (rule, value, callback) => {
      const regMobile = /^1[3-9]\d{9}$/;
      if (regMobile.test(value)) {
        return callback();
      }
      callback(new Error("请输入正确的手机号码"));
    };
    return {
      // 查询参数
      queryInfo: {
        query: "",
        pagenum: 1,
        pagesize: 5,
      },
      userList: [],
      total: 0,
      addUserVisible: false,
      editUserVisible: false,
      addForm: {
        userName: "",
        password: "",
        email: "",
        mobile: "",
      },
      editForm: {},
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          { min: 3, max: 10, message: "长度为3到10之间", trigger: "blur" },
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          { min: 3, max: 10, message: "长度为6到20之间", trigger: "blur" },
        ],
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入手机号码", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
      editFormRules: {
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入手机号码", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
      userRoleVisible: false,
      userInfo: {},
      roleList: [],
      selectedRoleId: ''
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      });
      if (res.meta.status !== 200)
        return this.$message.error("获取用户列表失败");
      this.userList = res.data.users;
      this.total = res.data.total;
    },
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage;
      this.getUserList();
    },
    async userStateChanged(userInfo) {
      const { data: res } = await this.$http.put(
        `users/${userInfo.id}/state/${userInfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state;
        return this.$message.error("用户状态更新失败");
      }
      return this.$message.success("用户状态更新成功");
    },
    addFormClosed() {
      this.$refs.addFormRef.resetFields();
    },
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return;
        //向服务器发起请求
        const { data: res } = await this.$http.post("users", this.addForm);
        if (res.meta.status !== 201) return this.$message.error("用户新增失败");
        this.addUserVisible = false;
        this.getUserList();
        this.$message.success("用户新增成功");
      });
    },
    async showEidtDialog(id) {
      const { data: res } = await this.$http.get("users/" + id);
      if (res.meta.status !== 200)
        return this.$message.error("用户信息获取失败");
      this.editForm = res.data;
      this.editUserVisible = true;
    },
    editUser() {
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) return;
        //向服务器发起请求
        const { data: res } = await this.$http.put(
          "users/" + this.editForm.id,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile,
          }
        );
        if (res.meta.status !== 200)
          return this.$message.error("用户信息修改失败");
        this.editUserVisible = false;
        this.getUserList();
        this.$message.success("用户信息修改成功");
      });
    },
    editFormClosed() {
      this.editForm = {};
      this.$refs.editFormRef.resetFields();
    },
    async deleteUserById(id) {
      const result = await this.$confirm("确认删除此用户吗?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      }).catch(error => error);
      if(result !== "confirm") return this.$message.info("已取消删除");
      const {data: res} = await await this.$http.delete('users/' + id);
      if(res.meta.status !== 200) return this.$message.error("用户删除失败");
      this.$message.success("用户删除成功");
      this.getUserList();
    },
    async showUserRole(user){
      this.userInfo = user;
      const { data: res } = await this.$http.get("roles");
      if (res.meta.status !== 200)
        return this.$message.error("角色列表获取失败");
      this.roleList = res.data;
      this.userRoleVisible = true;
    },
    async saveUserRole(){
      if(!this.selectedRoleId){
        return this.$message.error("请选择要分配的角色");
      }
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId});
      if (res.meta.status !== 200)
        return this.$message.error("用户角色分配失败");
      this.$message.success("用户角色分配成功");
      this.getUserList();
      this.userRoleVisible = false;
    },
    userRoleDialogClosed(){
      this.selectedRoleId = '';
      this.userInfo = {};
    }
  },
};
</script>
<style lang="less" scoped>
.el-table thead {
  color: #909399;
  font-weight: 500;
}
</style>